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Finding the Fourth Proportional to 19,203.50, 28,807.68 and 5,352.50

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Solution

The fourth proportional to 19,203.50, 28,807.68 and 5,352.50 is: 8,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.50 : 28,807.68 = 5,352.50 : x
  2. Step 2: Convert to fraction form
    19,203.50/28,807.68 = 5,352.50/x
  3. Step 3: Cross multiply
    19,203.50x = 28,807.68 × 5,352.50
  4. Step 4: Simplify right side
    19,203.50x = 154,193,107.20
  5. Step 5: Solve for x
    x = 154,193,107.20/19,203.50
  6. Step 6: Final answer
    x = 8,029.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.